Something Borrowed, Someone's Due

S4 E18: In the conclusion of a two-part episode, after Will (Eric McCormack) and Grace (Debra Messing) move into their expansive new dream apartment, they discover the awful pangs of separation anxiety as they pine for their smaller old digs now happily occupied by their friends who sub-let the place. Elsewhere, Jack (Sean Hayes) tries to reconcile Karen (Megan Mullally) with her estranged grifter of a mom (guest star Suzanne Pleshette, "The Love Bug") who wants to recruit her daughter for her next caper.